1. Effects of holographic bracelet on balance and muscle performance in soccer players: A quintuple-blind, placebo-controlled, crossover randomized clinical trial.
- Author
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de Paula Lima, Pedro Olavo, Rebouças, Nahra Santos, Chaves, Shalimá Figueirêdo, e Silva, Rômulo Lemos, Medeiros, Marcela Nicácio, and de Oliveira, Rodrigo Ribeiro
- Subjects
ANALYSIS of variance ,ATHLETES ,CROSSOVER trials ,POSTURAL balance ,HOLOGRAPHY ,MUSCLE strength ,SOCCER ,STATISTICS ,DATA analysis ,RANDOMIZED controlled trials ,REPEATED measures design ,DATA analysis software ,DESCRIPTIVE statistics - Abstract
This study aimed to analyze the influence of holographic bracelets on body balance and peak torque in soccer athletes through a quintuple-blind, placebo-controlled, crossover randomized trial. Twenty-eight male athletes were evaluated in a stabilometric baropodometer (DIASU®) and performed a protocol involving concentric contractions of the knee at 60°/s. Athletes were evaluated in three situations: no bracelet (baseline), with a placebo bracelet (PB) and holographic bracelet (HB). Comparing the mean torque peak at 60°/s during knee extension, there was no statistical difference for the dominant limb (p=0.713) and non-dominant (p=0.996) between the baseline, PB and HB groups. No statistical difference was found comparing the mean oscillation ellipses from the right foot with eyes open (p=0.359) and with eyes closed (p=0.173), as well as from the left foot with eyes open (p=0.891) and with eyes closed (p=0.778). In conclusion, holographic bracelet has no influence on either body balance or knee muscle performance in athletes. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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